TRUGLO Micro-Brite 5-Pin Sight DDP Black Patented Decreasing Diameter Pin design uses smaller pin sizes for longer yardagessee more of your target. TRUTOUCH soft-feel technical coating. Ultra-fine click adjustment for windage and elevation. Micro push-button light. Tool-less design. Extra-long, protected, wrapped fibers. Precision pin alignment eliminates distortion. Large circular field of view. Aperture has a 1.8" inner diameter. Glow-in-the-dark shooters ring helps align peep sight. Adjustable level with two vertical bars. Reversible bracket for greater vertical adjustability. Adjustable for left and right handed shooters.